Protective guard for winding or other machines



Nov. 2, 1926. 1,605,170

J. A. CAMERON PROTECTIVE GUARD FOR WINDING OR OTHER MACHINES i e 5 1923 '5 Sheets-Sheet 1 5 INVENTOR.

ATTORNEY.

Nov. 2 1926. 1,605,170

J. A. CAMERON PROTECTIVE GUARD FOR WINDING 0R OTHE 'R MACHINES Filed D80. 5, 1925 3 Sheets-Sheet 2 INVENTOR.

Nov. 2, 1926. 1,605,170

J. .5. CAMERON PROTECTIVE GUARD FOR WINDING OR OTHER MACHINES Filed em 5, 1925 asheets-sheeta a IN VEN TOR.

A TTORNE Y.

Patented Nov. 2, 1926 "UNITED STATES insane PA EN Q WE- JAMES A. CAMERON, OF BROOKLYN, NEW S EO'RK, ASSIGNOR T CAMERON MACHINE COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

PROTECTIVE ,GUAFI D FOR WINDING OR OTHER MACHINES.

applieatipp filed lJecember 3, 1923. Serial No. 678,336.

This invention relates generally to-protecting means fora machine having exposed )perating parts and more particularly'for a windingor .slitting an d winding machine for b flexible material the operator m y .b k p .fr ii nie 'yln ,the accompanying drawings the invent o s di p ed S s v's Ji m nd Pr irred.formsinwhichf rew eleratlqn wines e in n mies th ent-is comprises essentially two surface winding drums 1 and 2 and a winding shaft 3 which is displaceable in guides 4 in a manner well understood so as to allow wound material 5 to be accumulated thereon. The wound material in this case rests directly on the winding drums and is driven by friction therefrom. The exposed operating parts here to be protected are the front winding drum 1 and the rewound material, that is, the point of contact or nip between the two rotating members, and the object is to prevent the hand or arm of the operator from being caught and drawn in between the ro-.

tating members. The form of the invention shown in Figs. 1 to- 3 inclusive comprises a guard consisting of a support 6, a bar 7 and a plurality of parallel links 8 pivotally connected with the support and bar. It will be seen that this guard when in its lowered position, indicated in full lines in Figs. 1

and 2, is ineifective to shield the nip between the rotating members but that when actuated the bar and links form an eifective barrier that prevents access to the nip. The raised position of the parts isshowni-in dotted lines in Figs. 1 and 2. It will also be observed from Fig. 1 that the parts should be so proportioned and arranged that the bar in its raised position does not interfere with the accumulation of material on the winding shaft. ,Fig. 1 shows the largest diameter, forthe machine under consideration, accumulated material.

Itwill be understood that the guard may be raised byhand and then looked in position but, is preferred, rega'rdlessof the particular guarding' means employed, to have interconnegtion' lb etwee n a clutch, or other device, seas ning ,the drive of the machine, and'thefguard whereby, ,when the clutch is thrown in, ,the guard is raised ,intofeifective pp c k oi f a. v In the present instance, thedrive is mounted upon an extension of rear windingidrum 2 ,and .from.,this winding drum power is transmitted to frontv winding drum 1 by means, of, gears; .9 I or in any". other suitable sens nes drum receives motion in any suitable manner as by means of pulley 11 and clutch 12,

said clutch being controlled by clutch control lever 13 substantially after the fashion disclosed in Patent No. 1,465,967 of August 28, 1923. 14 is a brake drum. Clutch control lever 13 is mounted on a rockshaft 15 connected by link 16 with upright rod 17 which latter is connected with one arm by bell crank 18 on shaft 19, the other arm of saidvbell crank being connected by link 20 with hand lever 21 mounted to rock on center 22. By moving hand lever 21 to the left in Fig. 1, the clutch is thrown in. Pivotally supported on the framework is a bell crank 23 so positioned as to have one of its arms in front of hand lever 21. The other arm of said bell crank has a ball 24 engaging a slot 25 in arm 26 of one of the links 8. It will i now be understood that, when hand lever 21 is moved to the left in Fig. 1, not only is the clutch thrown in but, through the connections described, the guard is raised. 27 is a counterweight that assists the operator in overcoming the weight of bar 7 and links 8. Reverse movement of the hand lever uncouples the clutch and lowers the guard.

The parts are preferably so constructed and arranged with respect to each other that the clutch can be slightly engaged so as to inch the machine or turn it over slowly for purposes of adjustment or otherwise without moving the guard.

In Figs. 4 and 5 bar 7 is carried by two rock arms 28 (only one of which is seen) that are pivotally supported at 29 on the framework and which carry a counterweight llll 30. 31 is a toggle, one arm of which is pivoted to the framework and the other arm of which is pivotally connected with the outer end of one of the rock arms. It will be seen that when hand lever 21 is moved to the left (in Fig. at) to throw in the clutch, it engages the toggle at its central point and straightens it, thereby raising the guard.

In Fig. 6 rock arms 28 are moved by toggle 33 which in turn is actuated by gear sector 34, moving with hand lever 21, in mesh with gear 35 fast to one of the toggle links.

In Fig. 7, bar 7 is carried by two vertical 1y slidable members 36 (only one of which is seen). Members 36 slide in guides 37 and carry racks 38 that are raised and lowered by pinions 39 connected with gear sector 40 which latter receives its motion from gear sector 41 moving with hand lever 21. 42 is a counterweight to assist the operator in raising the device.

I claim V 1. The combination with a surface winding drum and a winding shaft to receive wound material that engages the upper surface of the winding drum of a support in front of the drum, a bar above the support, a plurality of parallel links pivotally connected with the support and bar, an actuating device to move the links, to raise the bar and thereby to shield the nip between the drum and wound material, driving mechanism to operate said drum, a clutch to control the driving connection between said drum and driving mechanism, and connections between said actuating device and said clutch.

2. The combination with a surface winding drum and a winding shaft to receive wound material that engages the surface of the winding drum, of a movable guard to shield the nip between the drum and wound material but normally ineffective so to do, driving mechanism to operate said drum, a clutch to control the driving connection between said drum and driving mechanism, and connections between said guard and said clutch whereby, on movement of the clutch to throw it in, the guard is moved into effective position.

Signed at New York city in the borough of Brooklyn countyof Kings and State of lew York, this 28 day of November, 1923.

JAMES A. CAMERON, 

